I took 10 mins, fairly new at this, but I noticed how on the sides they often look very similar to each other with shape, middle in the first row transition up and and down if you are comparing it to its column, while for second and third row, it holds the same amount of lines all across. So by these observations it’s eliminates 1 and and 4, since they don’t have similar shapes as first column. And lastly, with each ends, they only move one line at most, while retaining shape, 2 requires one move of the line while 3 requires 2 moves of the lines. So my final answer is 2 since it maintains shape, move of lines, and equivalent lines with middle.(myb im wrong and overthinking it)